2 citations · 3 across the 13 of their papers we have counts for
4 papers · 1 filter
Execution-transcript privacy for fault-tolerant surface-code memories
Jiachen Shen, Hui Zhong
A fault-tolerant quantum computer runs behind a telemetry stream logging syndromes, decoder actions, resets and timing separately from the answer. Can it reveal the logical input?…
Capability-Gated Conformance Testing of Quantum Error-Correction Decoder Libraries
Jiachen Shen, Hui Zhong
A quantum error correction decoder is a library other people's results depend on, judged in one dominant way. Sample errors, decode, and count wrong logical observables. We ask wha…
Explicit Separators for Consecutive Levels of Parrilo's Sum-of-Squares Hierarchy over the Copositive Cone
Jiachen Shen, Hui Zhong
Parrilo's cones $\Kc{n}{r}$ form a nested sequence of semidefinite-representable inner approximations of the copositive cone $\COP_n$. For their union is all of $\COP_5$, yet…
A conditional no-go for resource-free magic-axis measurement on a static surface code
Jiachen Shen, Hui Zhong
Under stated assumptions, a static surface-code patch that adds no fold or \mbox{self-dual} structure cannot perform the magic-axis check that magic-state cultivation relies on whi…